Crude oil sampling apparatus

The utility model discloses a crude oil sampling apparatus, include: the casing is provided with the cavity that can hold the crude oil sample in, sampling line, sampling line communicates with the upper portion of casing, the sample valve sets up on sampling line for switching to sampling line is controlled, excrete the pipeline, excrete the lower part intercommunication of pipeline and casing, the escape valve sets up on excreteing the pipeline for switching to excreteing the pipeline is controlled, the diapire, the diapire of casing has the concave part, and the escape valve communicates with the concave part of the diapire of casing. The crude oil sampling apparatus back is poured into into to oil appearance, stews a period, because the difference and then the water separating of oil of density, water in the oil appearance is discharged in can following the escape valve, sample valve and escape valve open in turn several times just can be when gathering oil appearance with crude oil and separation of wate